A series of pre-recorded tapes ___ (have,has)been prepared for the language laboratory 选什么 为什

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A series of pre-recorded tapes ___ (have,has)been prepared for the language laboratory 选什么 为什
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A series of pre-recorded tapes ___ (have,has)been prepared for the language laboratory 选什么 为什
A series of pre-recorded tapes ___ (have,has)been prepared for the language laboratory 选什么 为什

A series of pre-recorded tapes ___ (have,has)been prepared for the language laboratory 选什么 为什
has

have
tapes 是复数。

have 主语为复数。